Quenching tower for coking plants



March H, 1941. H. KOPFER$ QUENCHING TOWER FOR CUKING PLANTS 2 Sheets-Sheet .1

Filed July 21, 1939 March N, 1941. H. KOPPERS QUENCHING TOWER FOR COKING PLANTS Filed July 21, 1939 2 Sheets-Sheet 2 Patented Mar. 11, 1941 UNITED STATES PATET OFFICE QUENCHING TOWER FOR CURING PLANTS Heinrich Koppers, Essen, Germany, assignor, by

mesne assignments, to Koppers Company, Pittsburgh, Par, a corporation of Delaware Application July 21, 1939, Serial No. 285,558 In Germany July 22, 1933 3 Claims. (Cl. 2i ?--227) The invention relates to quenching towers for merit, the dust particles being thrown towards coking plants in which the glowing coke disthe outer walls as a result of the centrifugal force charged into the usual quenching car is quenched and falling downwards. The quenching vapours by means of water and the vapours thus prothen rise through the stack, arranged above the duced escape through the stack-like superstruccylindrical cleaning compartment, into the open ture of the quenching tower. air. a On account of the violent evaporation of water With the above and other objects and features within the quenching tower, a great amount of of my present invention in view, I shall new small particles of coke is carried out of the describe a preferred embodiment of my invention to quenching tower in the form of dust along with along the lines of the accompanying drawings,

the quenching vapours. This fine coke dust in which: deposits later-on in the open air and covers, for Fig. 1 is a vertical longitudinal section and instance, the leaves of trees and bushes in the 2 is a vertical cross section on line 11-11 neighbourhood of quenching installations with of Fig. 1. 15 rather a thick layer impermeable to the light. Fig. 3 is a vertical section through another 15 In consequence thereof the effective radiation embodiment of my present invention and of the sunlight cannot penetrate the leaves thus Fig. i finally shows a horizontal section on affecting the growth to a considerable extent. line Z.VIV of Fig. 3.

The present invention now has for its object The quenching car I charged with the glowto improve the quenching towers of coking plants ing coke extracted from the coke oven is driven as known heretofore and in such manner that underneath the quenching chamber section. 2 a separation of the troublesome fuel dust from of the quenching tower where the glowing coke the quenching vapours may be attained by simis treated with large quantities of water by p13 m n means of spraying tubes 3 arranged above the According to the invention there is arranged quenching car in the quenching chamber sec- $33 within the quenching tower of the coking plant, tion The quenching chamber section 2 is adjacent the space in which are placed the closed at the top by a roof l. The left wall 5 quenching car and the quenching water delivof the quenching chamber section is provided at cry, a cleaning compartment which is provided its upper part with an opening 6 leading to the with a central partition and connected with the cleaning compartment 1 arranged beside the vapour discharge outlet opening. A water cirquenching chamber section. culation system for the Washing and cooling of A vertical guide wall 8 extending fromv the the quenching vapours may be arranged therein, roof i is installed in the cleaning compartment preferably independently of the quenching water i by means of which the quenching vapours risdelivery system. ing upwards in the quenching chamber section The cleaning compartment according to my 2 after passing the opening 6 are forced to flow invention is suitably provided with guide-walls downwards in order to pass around the guide by means of which the quenching vapours are wall it on its Way to the cleaning compartment forced to undergo a change in the direction of for flow through the stack 9 upwards into the 40 how. The bottom of the cleaning compartment open air. to is provided with a closable dust-collecting space With the sudden reversal of the direction of for collecting the separated coke dust. From flow of the vapours from the downward to the time to time, the solid constituents may be exupward direction, the coke particles carried tracted from the dust collecting space. along during the quenching process, due to the The present invention further comprehends vehement raising of steam, are separated from 45 constructing the cleaning compartment, arthe quenching steam and they fall into the dustranged adjacent the quenching tow-er housing, collecting space section Ill. The dust-collecting the quenching car, and the quenching water despace section Ill is provided with an inclined livery system, in such a manner that it has bottom H which fits against the vertical wall 5 nearly a cylindrical form in a vertical upright it of the quenching tower. To the very end of position, with a tangential inlet for the introthe inclined bottom. I I there is connected an duction of the quenching water vapours. The outlet it for the dust which is closed by a sealvapours produced and rising upwards violently ing damper I4. From time to time the coke dust during the quenching process are thus led in accumulating in the collecting space section In 5 whirling current through the cleaning compartis discharged through the outlet I3. It may,

however, also be advantageous to assist the separation of dust from the quenching vapours by means of sprinklers arranged within the space l5.

With the mode of construction illustrated in Figs. 3 and 4, the dust cleaning chamber is designed according to the present invention in such a manner that it acts as a centrifugal dust separator or cyclon. An essentially horizontal tubular passage 3| leads from the quenching chamber section 30 to the cleaning chamber section 32. The cleaning chamber section 32 is essentially in the form of a vertical cylinder. The passage 3| terminates in the chamber section 32 i5 tangentially. The gases or vapours flowing at a rather high velocity on leaving the passage 31 and entering the cleaning chamber section 32 rotate within the cylindrical chamber 32, and the dust particles contained in the gases or vapours are deposited mostly on the chamber walls and finally fall through an opening 33 provided in the bottom 34 of the cleaning chamber section into the dust collecting space section 35. They are removed at 36.

When carrying out the invention according to Figs. 3 and 4, the upper part of the cleaning chamber 32 serves simultaneously as a chimney in which a natural draught necessary for moving the gases and vapours is produced. The movement of the gases and vapours may, however, also be effected or assisted by forced draught, for instance by adopting fans or other means.

I have now above described my present invention on the lines of a preferred embodiment thereof, but my invention is not limited in all of its aspects to the mode of carrying it out as described and shown, since the invention may be variously embodied within the scope of the following claims.

. I claim:

1. A quenching tower for coking plants or the like comprising a quenching chamber section in which the glowing coke charged into the quenching car is treated with quenching water, a dust 45 cleaning chamber section arranged to one side of said quenching chamber section and communicably connected at its lower part with the quenching chamber section and at its upper part with an outlet discharge for the quenching gases and 50 quenching vapours, and a dust collecting space section below the dust cleaning chamber section and communicating at its upper part with the lower part of the dust cleaning chamber section; and in which the communicable connection of 55 the dust cleaning chamber section with the quenching chamber section is constituted of gas flow passage having means therein adapted to impart a sudden reversal in the direction of flow of the gases and vapors inducing a whirling cen- 0 trifuging effect on the gases and vapours over thedust collecting space section as they enter the bottom of the cleaning chamber section from the quenching chamber section for flow thence through the cleaning section to its outlet dis- 65 charge.

2. A quenching tower for coking plants or the like comprising a quenching chamber section in which the glowing coke charged into the quenching car is treated with quenching water, a dust cleaning chamber section arranged to one side of said quenching chamber section and communicably connected at its lower part with the quenching chamber section and at its upper part with an outlet discharge for the quenching gases and quenching vapours, and a dust collecting space section below the dust cleaning chamber section and communicating at its upper part with the lower part of the dust cleaning chamber section; and in which the communicable connection of the dust cleaning chamber section with the quenching chamber section is constituted of gas fiow passage means adapted to impart an abrupt change in direction of flow inducing a whirling centrifuging effect on the gases and vapours over the dust collecting space section as they enter the bottom of the cleaning chamber section from the quenchin chamber section for flow thence through the cleaning section to its outlet discharge, and in which vertical guide walls are arranged between the dust cleaning chamber section and the quenching chamber section, said guide walls being arranged to cause the gases and vapours from the quenching chamber section to flow upwardly alongside a partition, over the same, then downwards along the other side of said partition to the communicable connection, and thence be centrifuged before flowing up again through the cleaning section.

3. A quenching tower for coking plants or the like comprising a quenching chamber section in which the glowing coke charged into the quenching car is treated with quenching water, a dust cleaning chamber section arranged to one side of said quenching chamber section and communicably connected at its lower part with the quenching chamber section and at its upper part with an outlet discharge for the quenching gases and quenching vapours, and a dust collecting space section below the dust cleaning chamber section and communicating at its upper part with the lower part of the dust cleaning chamber section; and in which the communicable connection of the dust cleaning chamber section with the quenching chamber section is constituted of gas flow passage means adapted to impart an abrupt change in direction of flow inducing a whirling centrifuging effect on the gases and vapours over the dust collecting space section as they enter the bottom of the cleaning chamber section from the quenching chamber section for flow thence through the cleaning section to its outlet discharge, and in which the dust cleaning chamber section is substantially in the form of a vertical cylinder and the communicable connection is constituted of a connecting pipe between the quenching chamber section and the dust cleaning chamber section, which pipe terminates in the latter substantially tangentially.

HEINRICH KOPPERS. 

